I can certainly attest to the mishaps of equiptment such as range finders and rifle scopes. Also being out in that Western high country over 3 dozen times, still it gets hard to estimate range for the first couple days with me anyway.
I zero my .270 Win & the 30-06 I owned at 200 yards! However, my .300 Win mag and 7mm Rem mag are both zeroed at 300 yards.
I never tried to kill elk further than 250 yards with my 06. I lost my first elk with a .270 cal years ago. A lesson well learned in bullets and bullet weight.
However, I was told by a wise old greybeard hunter to take that magnum of mine and zero it DEAD ON at 300 yards! I did so and also have laminated card on the stock to let me know what to do at 400, 450 and 500 yards with a 180 grain bullet. It has worked very well all these years.
